The invention relates to a treatment production line for testacean marine products. The treatment production line is characterized by comprising a pretreatment production line, a first production line, a second production line and a third production line, wherein according to a processing sequence, the pretreatment production line sequentially comprises a stocking warehouse, a first washing station, a sterilization station, a rinsing station, a blow-drying station and an inspection grading station; according to the processing sequence, the first production line sequentially comprises a subpackaging station, a raw meat quick-freezing station and a refrigerating station; according to the processing sequence, the second production line sequentially comprises a shelling and fleshing machine, a cleaning table, a subpackaging station, a raw meat quick-freezing station and a refrigerating station; according to the processing sequence, the third production line sequentially comprises a shelling and fleshing machine, a cleaning table, a tunnel steaming machine, a tunnel airing machine, a subpackaging station, a cooked meat quick-freezing station and a refrigerating station. The treatment production line for the testacean marine products is simple in structure and high in the degree of automation, and facilitates the mass production of seafood products.